Air con

[kgbboris]

I had a very similar noise on mine. I removed egr valve and the pipe and blanked off the exhaust manifold and fitted an egr valve blank up top, after had a horrific ticking noise. thought great somethings going to blow up now, what is was in the end was some of the exhaust paste I had used on the egr pipe had fallen off and got stuck to the fan belt and was clicking and ticking as it looped round the tensioners etc. so you may have some dirt etc in there maybe? if not get it diagnosed as may save you a lot of money to get it looked at now rather than when something fails.
also nice to see someone with the same car and engine on here as 99% on here are the petrols.